Stereotype plate casting machine



F. A. FOSTER Nov; 23, 1937.

Filed April 10, 1955 3 Sheet s-Sheet 1 lNV N fwafig '1' LA. A RNEYSFiled April 10, 1935 3 Shets-Sheet 2 "INVENTOR- Nov. 23, 1937. F. A.FOSTER" 4 I STEREOIYPE PLATE CASTING MAGHI'NE Filed April 10, 1955 r 3Sheets-Sheet 5 BY v a 7 ATTORNEYS Patented Nov. 23, 193'! UNITED. STATESSTEREOTYPE PLATE CASTING MACHINE Frank A. Foster, Maywood,

Goss Printing Press Company,

corporation of Illinois Ili., assignor to The Chicago, 111., a

-Application April 10, 1935, Serial m. 15,508

1 Claim. (Oi. 22-4) The invention relates to new and useful improvementsin stereotype plate castingmachines and more particularly to improvedmeans for handling or removing the plates after casting, especially insuch machines for casting tubular plates.

Objects and advantages of the invention will be set forth in parthereinafter and in part will be obvious herefrom, or may be learned bypractice with the invention, the same being realized and attained bymeans of the instrumentalities and combinations pointed out in theappended claim.

The invention consists in the novel parts, constructions, arrangements,combinations and improvements herein shown and described.

The accompanying drawings, referred to herein and constituting a parthereof, illustrate one embodiment of the invention, and together withthe description, serve to explain the principles of go the invention.

Of the drawings:-

Fig. 1 is an elevation, with parts in section, of a machine embodyingthe invention;

Fig. 2 is an elevation looking at 5 the right;

Fig. 3 is afsection on line 3-3 of Fig. 1; and

Fig. 4 is a view similar to Fig. 1 with the parts in plate deliveringposition.

An object of the invention is to provide a Fig. 1 from simple, efficientand rapid plate-casting machine,

with certainof its features especially capacitated for casting andhandling so-called tubular plates.

The invention provides, among other advantages,

means for moving-the ca'st plate to a. position for easy and rapidremoval from'the core, and provides devices for automatically effectingsuchplate movement as the core is moved toward delivery position.- Withthe tubular type of plate,

this mechanism acts to project the outer end of the plate beyond the topof the core, where it is convenient to be grasped by. the hands, of theworkman and drawn'ofif the core by pulling it toward himself. Otherfeatures of the invention comprise means for easy manual movement of thecore between casting and delivering'positions, and also means for watercooling the core which is not disturbed by the rocking of the corebetween vertical and-horizontal or inclined positions. Other objects andadvantages of the invention will be set -f01'thr in connection with thefollowing detailed description of the present preferred embodiment.

Referring now in detail to the embodiment of the invention illustratedby way of example in lithe accompanying drawings, a supporting frame maybe closed for the casting [locking the two halves of the cover togethercomis provided having side-by-side u'p'wardly' extending frame members 5and 6, with a horizontally extending frame member I which is boltedtothe tops of the uprights 5 and 6. The cover member I H of the castingmechanism is in two parts and 5 opens and closes. It comprises astationary, vertically-extending cylindrical member i2, which has ahorizontal bottom flange I3, resting upon and bolted to the plate 1. Themember I2 is provided preferably with both vertical and horizontalstrengthening and cooling flanges l4 and IS. The front half l8 of thecover member II is similarly constructed, and is hinged to averticaledge of the stationary cover member [2 by hinges i9. Thereby thefront half l8 of the cover operation, as in Fig. 1, and then opened, asin Fig. 4, to permit the core to rock downwardly to the plate-deliveringposition. Theembodied means for forcing and prises a-handle 23 which ispivoted at 24 upon the stationary half l2, and has a plate 25 in whichis a cam slot26. A pin 21 is fixed upon and projects from thefront halfl8 of the cover, and ms in the cam slot so that on rocking the lever 23the cam 26 takes the pin 21 and draws the two halves of the coverpowerfully together and holds them there. A handle 29 is fixed to thehinged part l8 of the cover for opening and closing it.

The core 33 1s mounted to move between the vertical casting position anda horizontal or inclined plate delivering position. As embodied there isbolted to the bottom of the core 33 a counter-balancing weight 31. Thisstructure has hollow trunnions 3| and 35 projecting from the 35counterweight, and journaled in bearings in the a frames 5 and 6, and ahand lever is preferably provided fixed to hollow trunnion 3| to rockthe core between casting and delivery positions. Fixed to the rear ofthe core and extending axially therealong is a tongued projection 43,adapted in the casting position to fit into aicorrespondinggrooved-member ll fixed in the rear-half I2 of the cover. to constitutevertical" walls of .the castin chamber corresponding to the gap in atubular stereotypeplate. r Y Q Q Means are provided for water coolingthe core and fortrapping and maintaining the water supply when the coreis rocked to delivery position. In' the embodied form, .a water inletpipe 45, having if desired a valve 41, discharges, water intothe hollowtrunnion 34, and apassagetwithin the counterweight connects into a riserpipell, extending upwardly within the hollow'core verynearly to the top,and thus-discharges the water into the upper endof the hollow core. Adischarge opening 49 is provided in the bottom of the core, and thiscommunicates through hollow trunnion by a rotary joint with a stationarypipe 50, which extends upwardly to approximately the level of the top ofthe core when it is in casting position, and the water can be freelydischarged therefrom. A bracket 5| fixed on the frame 6 holds pipe 50.Thus the water is maintained within the core irrespective of itsmovement between the casting and delivery positions, and without anelaborate system of piping, tanks and the like.

Means are provided for moving the plate along the core to project itsupper edge beyond the core, so that. it may be readily grasped andwithdrawn by the operator. In accordance with one feature of theinvention this movement of the plate is effected automatically duringthe movement of the core fromcasting to delivery position. As embodied,an annular member 53 encircles the bottom part of the core, and when inthe casting position (Fig. 1) it rests upon the shoulder 54 formed atthe bottom of the core. The member 53 has an enlarged bottom part 55 andextending upwardly therefrom a diminished-part 55- of lessercircumference, the thickness of the part 56. being such that it exactlyfills the space between the core and closed cover, and thus constitutesthe bottom of the casting chamber. The part 56 has an outer annularrecess 51 at its top to receive the bottom edge of 'the matrix mountedupon the cope. The upper part 56 has at its back a slot 58, within whichslot is the lower end of the tongued p'rojection 43 which is fixed tothe core. The slot 58 permits movement of the member 53 along the core,and it also coacts with the member 43 to constitute guiding means formember 53. A packing ring. 59 may be employed to make a water tightjoint. The automatically operating means for the plate ejecting member53 comprises pintles 6| and 62 fixed to and projecting from oppositesides of the enlarged bottom part 55 of ejector 53. Pivotally mounted onthese pintles are arms 63 and 54, the lower ends of these arms beingpivoted on pintles 55 and 56, which are mounted in the frame members 5and 6. When the mechanism is in casting position, the plate ejector 53is in the position shown in Fig. 1, and after the cover H is opened, andas the core isrocked downwardly to the delivery position, the plateejector member 53 is moved along the core -from the position shown inFig. 1

to that shown in Fig. 4, and thereby the top edge of the plate is movedoutwardly beyond the top of the core, and the plate may be readilygrasped by the workmans hands and withdrawn from the core.

The invention in its broader aspects is not limited to thespecificmechanisms shown and described but departures may be made therefromwithinthe scope of the accompanying claim without departing from theprinciples of the invention and without sacrificing-its chiefadvantages.

What I claim isi A machine for casting tubular stereotype platesincluding in combination a, frame, an openable and closable cover, ahollow, watercooled, pivotally mounted core movable between casting anddelivery positions, said pivotal mounting for the core comprising hollowtrunnions journaled in theframe, a water pipe within the coreconnectedto one of the hollow trunnions acting as a water inlet, and awater outlet at the bottom of the hollow core communicating with theother hollow trunnion, and a stationary exterior pipe, receiving thedischarged water from the trun-. nions, said pipe having its dischargeend at substantially the level of the top of the core when in castingposition.

. FRANK A. FOSTER.

